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      • KCI등재후보

        The Specific Case Analysis of Biomineralization Induced by Sulfate Reducing Bacteria

        ( Hongwei Liu ),( Shuang Qin ),( Chaoyang Fu ),( Fei Xiao ),( Deli Wang ),( Xia Han ),( Tianli Wang ),( Hongfang Liu ) 한국부식방식학회(구 한국부식학회) 2017 Corrosion Science and Technology Vol.16 No.6

        The effects of sulfate reducing bacteria (SRB) on the corrosion and scaling of the Q235 carbon steel has been investigated in the simulated sewage water and oil field gathering pipelines production water, using scanning electron microscopy (SEM), energy dispersive x-ray spectrometry (EDS), and three-dimensional stereoscopic microscope. Results indicated that the concentration of SRB reached the maximum value on the ninth day in simulated sewage water with a large amount of scaling on the surface of specimen. In oil field gathering pipelines, a large amount of scaling and mineralization of mineral salts and thick deposition of extracellular polymeric substance (EPS) layers were also observed on the surface of specimen. The thickness of biofilm was about 245 μm within 30 days. After adding microbicides, the thickness of corrosion products film was only up to 48 - 106 μm within 30 days, suggesting that SRB could induce biomineralization. Under-deposit corrosion morphology was uniform in the absence of microbicides while local corrosion was observed in the presence of microbicides.

      • KCI등재

        Herbal medicine Radix Scutellariae quality improved by exposure of the fresh root to high temperature

        Fu Xiaoying,Guo Huimin,Cong Wei,Du Hongwei,Meng Xiang-Cai 경희대학교 융합한의과학연구소 2017 Oriental Pharmacy and Experimental Medicine Vol.17 No.4

        Approximately 1200 years ago, the close association between the quality of medicine and the producing area was well known in China. Recent work has shown conclusively that the quality of herbal medicine is influenced by unfavorable conditions, but the exact cause remains unclear and is a difficult problem in research on herb resources. Fresh roots of S. baicalensis were exposed to temperatures of 35 °C ~ 55 °C, and the H2O2 level remained relatively inflexible. The superoxide dismutase (SOD) and catalase (CAT) activities remained stable at 35 °C and 45 °C but decreased on day 1 at 55 °C. The excess ROS due to the high temperatures must be removed by another pathway. Our study reported that the phenylalanine ammonia-lyase (PAL) activities rose. The fresh roots were exposed to 55 °C for 2 days, the baicalin increased by 38.5%, the wogonoside by 24.1%, and the baicalein by 37.0%. This method can substantially improve the quality of Radix Scutellariae.

      • KCI등재

        Herbal medicine Radix Scutellariae quality improved by exposure of the fresh root to high temperature

        Xiaoying Fu,Huimin Guo,Wei Cong,Hongwei Du,Xiangcai Meng 경희대학교 융합한의과학연구소 2018 Oriental Pharmacy and Experimental Medicine Vol.18 No.1

        Approximately 1200 years ago, the close association between the quality of medicine and the producing area was well known in China. Recent work has shown conclusively that the quality of herbal medicine is influenced by unfavorable conditions, but the exact cause remains unclear and is a difficult problem in research on herb resources. Fresh roots of S. baicalensis were exposed to temperatures of 35 °C ~ 55 °C, and the H2O2 level remained relatively inflexible. The superoxide dismutase (SOD) and catalase (CAT) activities remained stable at 35 °C and 45 °C but decreased on day 1 at 55 °C. The excess ROS due to the high temperatures must be removed by another pathway. Our study reported that the phenylalanine ammonia-lyase (PAL) activities rose. The fresh roots were exposed to 55 °C for 2 days, the baicalin increased by 38.5%, the wogonoside by 24.1%, and the baicalein by 37.0%. This method can substantially improve the quality of Radix Scutellariae.

      • KCI등재

        Acupuncture Therapy for the Treatment of Myelosuppression after Chemotherapy: A Literature Review over the Past 10 Years

        Yi Guo,Hongwei Fu,Bo Chen,Shouhai Hong 사단법인약침학회 2015 Journal of Acupuncture & Meridian Studies Vol.8 No.3

        The aim of this study is to review current studies on the effect of acupuncture therapy on bone marrow suppression after chemotherapy. The authors of the present paper have searched related literature over the past 10 years at home and abroad, analyzing the features and the effects of acupuncture therapy (including acupuncture, moxibustion, point injection, point application, etc.) for treating myelosuppression after tumor chemotherapy. We also discuss the year of publication, document type, acupuncture therapy, acupoint selection, and adverse effects with figures. We analyzed 159 articles related to acupuncture therapy from 2004 to 2013, and the analysis revealed that point injection was the most frequently used therapy for clinical applications, and that Zusanli (ST36) was the most frequently used acupoint. The results showed that some problems regarding the design method, acupoint selection, and acupuncture intervention measure existed in those research studies. We hope to provide readers with an overall and objective understanding of acupuncture and moxibustion therapy for treating myelosuppression after tumor chemotherapy.

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